ABB DDCS Branching Unit NDBU-85C / 8+1 CH – NDBU-85 / 64001507
Product Overview
The ABB NDBU-85C / NDBU-85 Branching Unit is an industrial communication module designed for ABB Distributed Digital Control Systems (DDCS). This 8+1 channel unit enables reliable signal branching and distribution within DDCS networks, ensuring efficient data communication, redundancy, and robust system performance. Engineered for industrial automation, the NDBU-85 series supports high-speed data transfer and fault-tolerant operation.
Product Parameters
| Parameter | Description |
|---|---|
| Model | NDBU-85C / NDBU-85 |
| Part Number | 64001507 |
| Module Type | DDCS Branching Unit |
| Number of Channels | 8+1 (Primary + Auxiliary) |
| Communication Protocol | ABB DDCS / proprietary bus system |
| Data Rate | High-speed industrial data transfer |
| Power Supply | 24 VDC nominal |
| Operating Temperature | 0°C to +60°C |
| Mounting | Rack-mounted or DIN rail compatible |
| Protection | Overcurrent, short-circuit, and network fault detection |
| Diagnostics | LED status indicators for each channel |
| Duty Cycle | Continuous operation |
| Origin | Switzerland |
Product Datasheet Summary
| Item | Specification |
|---|---|
| Signal Distribution | 8+1 channel branching for DDCS networks |
| Redundancy | Auxiliary channel for fault-tolerant operation |
| Fault Monitoring | Real-time detection and notification |
| Network Compatibility | Fully compatible with ABB DDCS modules |
| Mechanical Design | Industrial-grade enclosure with secure connectors |
| Maintenance | Hot-swappable installation and minimal upkeep |
Product Introduction
The NDBU-85C / NDBU-85 acts as a core communication branching unit in ABB Distributed Digital Control Systems. It provides reliable distribution of control and monitoring signals across multiple channels while supporting redundancy for critical applications. The device ensures high-speed data transfer and system integrity in industrial automation environments.
Applications
This branching unit is suitable for:
- Power generation and distribution automation
- Oil and gas control systems
- Chemical and petrochemical plants
- Water and wastewater treatment automation
- Manufacturing process control
- Distributed industrial automation networks
- Redundant or fail-safe communication systems
Operation & Usage Instructions
- Installation:
Mount the unit securely in the designated system rack or DIN rail. - Electrical Connection:
Connect the main and auxiliary communication channels according to network diagrams. - Network Configuration:
Assign channels and configure the network address via ABB system software. - Operation:
The branching unit automatically distributes signals and monitors channel integrity. - Maintenance:
Inspect connectors and LED indicators regularly; replace if network faults are detected.
Technical Description
The ABB NDBU-85 / NDBU-85C features an industrial-grade communication interface with 8 primary channels and 1 auxiliary channel for redundancy. The device supports high-speed DDCS communication, real-time diagnostics, and fault detection to maintain network stability. Designed for continuous industrial operation, it ensures reliable signal branching and robust performance in critical automation systems.
Recommended ABB DDCS Communication Modules
| No. | Model | Description |
|---|---|---|
| 1 | NDBU-85 | Branching Unit 8+1 CH |
| 2 | NDBU-85C | Branching Unit with Redundant Channel |
| 3 | NDPU-90 | Distributed Process Unit |
| 4 | NDMU-80 | Monitoring Module |
| 5 | NDIO-75 | Input/Output Expansion Module |
| 6 | NDBU-80 | Standard Branching Unit |
| 7 | NDPU-85 | Processor Interface Unit |
| 8 | NDPU-85R | Redundant Processor Unit |
| 9 | NDBU-90 | High-Speed Branching Unit |
| 10 | NDIO-85 | Analog/Digital I/O Module |
| 11 | NDMU-85 | Multiplexer Unit |
| 12 | NDBU-88 | Extended Channel Branching Unit |
| 13 | NDPU-95 | Advanced Processor Unit |
| 14 | NDPU-95R | Redundant Advanced Processor |
| 15 | NDBU-87 | Compact Branching Unit |
| 16 | NDMU-88 | Multi-Channel Monitoring Unit |
| 17 | NDIO-90 | High-Performance I/O Module |
| 18 | NDPU-100 | Next-Gen Process Unit |
| 19 | NDBU-100 | High-Capacity Branching Unit |
| 20 | NDMU-90 | Advanced Multiplexer Unit |
For sourcing, system integration, and technical support, visit:
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One year warranty, special discount after sale
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[service contact information]
Purchase and consultation hotline: +8613365909307 (Whatsapp/ Wechat)
E-mail: dcsplcsales@gmail.com
Contact Person: Simon
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